Last summer’s cyclosporiasis outbreaks that affected 25 states have been traced to fresh cilantro and a restaurant salad mix.

Cyclosporiasis is an intestinal infection caused by the Cyclospora cayetanensis parasite. In 2012 the National Notifiable Diseases Surveillance System received 123 reports of the infection. But last year’s total ballooned to 643 cases, most of which were reported from 3 states: 278 cases in Texas, 153 in Iowa, and 86 in Nebraska.